THE HERALDSaturday, May 10, 1975Section 3—23(Diagram l)(D agram 2)(Diagram 3)(Diagram 4)BLACKBLACKBLACK RACE VICBLACKRAICEVICBO NO 80 O X 8X NX BXNO SO,V, 41 ♦ % v■ ’S~m ' ’ tty□g□v vs% w% Vl % * 1 %'Byr'[ ]1111£3Ic1r.r.x«■» ® *-OR ON OBK KB KN KRHO NO SO O X SX NX BX80§. - 4Hnr* 210532dO NO SO O X SX NX tiXOR ON OBKB KN KROR ON QB Q K KB KN KRQR ON OB Q K KB KN KRWHITEWHITEBA ILLWHITEBAILEWHITEWhrta to playMate s forcedShould he (white)?Black resigns (white's more)Greco’s classic bishop sacrifice more than 3 centuries oldNo attacking idea is more basic than theso-called Greco's sacrifice, which is first found in Greco's own chess handbook published in 1619.Shelby Lymanon chessat ions were “forced,” i.e., easy to calculateto conclusion.Recently the young Yugoslavian Baile. The fact remains that Baile's sacrifice was substantially less clean than our firstThe position as given by Greco himself (Diagram 1) White will sacrifice his bish-had a much more difficult judgment to make in his game against lnternatiional Master Raicevic. in the recent Yugosla-op to expose black's king and then threat- en a winning checkmate with his queenGh«*ss club finihcs secondand knight,second diag BxP checkvian championship. Should (Diagram 3)he or shouldn’t he try the classic sally? IsIa •it justified in this particular position?Baile acted forthrightly, sacrificed theThe Arlington Heights Chess Clubrecently placed second in the Northwest Chicago Suburbs Chess League, said DaveMiilson, a .spokesman for the group.Anyone interested in chess is invited to atfend the weekly meetings of the clubeach W'ednesday at 7:30 p.m. at Pioneer Park, 500 S. Fernandez.For information, contact Miilson,396-8575.N-N5 check, K-Nl; 3. Q-R5. and there is no defense to mate via 3. . « . R-Kl; 4. Q-R7 check. K-Bl; and 5. Q-R8 mate or 3. . . . BxN; 4. PxB, P-B3; 5. P-N6 and 6.Q-R8 mate is inevitable.Nor does an attempt to vary on movetwo with . , . K-N3 or . . . K-R3 save the game, as the reader can readily convince himself.BUT OUR first example of Greco’s sac-e is absolute simplicity compared to what can happen. For the winning vari-bishop and won forcefully, as we can see from our final position, in which black resigned. The (Diagram 4) latter's king has been driven far afield and there is noexample. There were many more possibilities from sacrifice to conclusion.W as it sound? Here are the moves from Diagram Three to Diagram Four: 1. BxPcheck, KxB; 2. N-N5 check, K-R3; 3..Q-Q3, BxN; 4. PxB check. KxP; 5. P-K4, K-B3; 6. O O-O; P-B5; 7. Q-N3. R-Kl; 8. R-R7, K-K3; 9. PxP check, K-Q2; 10. Q-N4 check, K-Q3; 11. Q B4 check, K-Q2;defense (I. Q-B5 check, K-Q3; 2. N-X5 check. K-K2; 3. R-Kl and it’s over).resigns.Play through and analyze some of the possibilities to see whether the sacrificewas sound.Copyright 1975 by Shelby Lyman*